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                                                                    EXHIBIT 23.1
 
                        CONSENT OF INDEPENDENT AUDITORS
 
     We consent to the incorporation by reference in this Registration Statement
of Primark Corporation of Form S-8 of our report dated February 8, 1996,
incorporated by reference in the Annual Report on Form 10-K of Primark
Corporation for the year ended December 31, 1995. We also consent to the
reference to us under the heading "Item 5. Interests of Named Experts and
Counsel" in such Registration Statement.
 
/s/ DELOITTE & TOUCHE LLP
 
Boston, Massachusetts
December 9, 1996